Collapsible tube.



B. RUYSDAEL.

COLLAPSIBLE TUBE.

APPLIGATION FILED APRA, 1942.

Patented J an. 19, 1915. v

FFECE,

BASIL RUYSD'AEL, 0F NEW YORK, N. Y.

COLLAPSIBLE TUBE.

Specification of Letters Patent.

PatentedJan. 19, i915.

Application led April 1, 1912. VSerial No. 687,646.

l/'o uit wlmi/L it may concern Be it known that I, BASE. RUYsDAEn, a citizen of the United States of America, residing in New York, in the borough of Manhattan, county and State of New York, have invented certain new and useful I mproveinents in Collapsible Tubes, of which the following is a specification. l

This invention relates to certain improvements in the nipples and caps of collapsible tubes, bottles and similar containers so that the removing and replacing of the cap 1s facilitated, a tight closure of the tube secured, and a oheapening of the tube or other container obtained; and for this purpose the invention consists of a collapsible tube or other container, provided with arconlcally-tapering nipple having one. or more grooves in its sides, and a cap havlng an .1ntcrior recess corresponding in shape. with the nipple, and one or more grooves 1n the lower portion of said recess, as will be fully described hereinafter and finally pointed out in the claims.

In the accompanying drawings, Figure 1 represents a perspective View of a collapsl ble tube with my improved closing device, Fig. 2 is a side-elevation of the tube with the cap removed, Fig. 3 is a vertical transverse section through the nipple and cap, on line 3-3, Fig. 1, drawn on a larger scale, and Fig. 4 is a horizontal section, drawn on line i-Jl, Fig. 3.

Similar letters of reference indicate corresponding parts throughout the several figures of the drawings.

Referring to the drawings, a represents the body of myimproved collapsible tube or other container, b the nipple, and c the cap of the same. The nipple b is made of a conieally-'tapering exterior shape and provided at one or more points of its upper portion with one or more side-grooves b. The cap c is grooved or knurled on'its outside and provided with an interior conically-tapering recess which corresponds with the exterior shape of the-nipple b, saidkcap being likewise providedwith a groove c at one or more points, said groove or grooves being a1'- ranged at the lower end of the-interior wall' of the nozzle, but of suiiicient length so thaty when the cap is placed` on the nipple for l closing the same the groove or grooves c of the cap extend somewhate over the lower ends of the grooves b of the nipple. The

grooves b and c serve when placed in alinement with each other on placing the cap over the nipple, for giving a certain outlet for the liquid, pasty or other contents of the tube, while still preserving the tight closure of the same, especially immediately after the cap is slightly turned on the nipple so as to place the interior grooves out of register with each other. The interior recess of the cap c is made cylindrical. at its upper portion c2 so that when the cap is forcibly pressed downward over the nipple it compresses the upper end of the nipple and Aproduces a perfectly tight and reliable closure of the collapsible tube or other container forthe reason'that the lower edge of the cylindrical recess c2 exerts a considerable pressure on the upper edge ot the nipple.

The cap is provided at the outside in line with the interior groove with an index-mark CZ and the top of the tube with a similar mark d in line with the groove on the nipple, so that the grooves are readily placed in alinement. A chain connectes the cap with the tube for .preventing the dropping or loss of the cap.

The tight closing of the nipple is produced by the frictional pressure of the cap on the same. A slight turn of the cap permits the removal of the same from the nipple, or the tight replacing of the same thereon without the loss of time required for unscrewing the cap and removing the, same or screwing it on for replacing the same. The cylindrical recess vc2 provides a space within which paint, or other contents of the tube, may accumulate in a wet condition, whereby, when the cap is removed, only fresh paint is exposed at the top of the nipple and expelled when the tube is pressed. In applying the cap to the nipple, the sameV is applied with the grooves b c in register. Thereby, the surplus` material which is always left -at. the outside of the. nipple, and which in the act. of applying the cap is caught between the same and the nipple, is forced into the cylindrical recess and into the grooves.,4 The two tapering metal' surfaces, namely, that of the cap and that of the nipple, are thus left substantially clean, so that secure frictional contact can take place. The grooves provide an outlet for the surplus'material, so that the considerable pressure tending, to lift the cap` from the nipple, which this surplus material would otherwise cause, is relieved. The cap "'is worked from side to side, onthe nipple,

with the grooves in register, until all the surplus material is squeezed out from between the tapering faces, and the cap is then finally turned suliiciently to place the` grooves out of register.` In the operation of applying the cap, the surplus material is exuded from the lower groove, and may be wiped 0H from the top of the tube by cloth contained under no cap-lifting pressure,

whereby the advantages of a fresh paint supply are obtained in a. cap secured by friction only.y

As the collapsible tubes and similar con- O tainers are made of comparatively soft metal, the reliable fitting together of nipple and cap is obtained. At the same time the improved closing device is considerably cheaper than the screw-threaded nipples and caps heretofore in use.

I claim:

A closing device for collapsible tubes and other containers, comprising an outwardly conically-tapering nipple having a longitudinal groove in its outer and upper portion, and a cap having an interior inwardly conically-tapering recess fitting over the nipple and provided with a longitudinal groove in its inner and lower portion, said cap being provided with an interior cylindrical space beyond the outer end of the nipple when seated, an outlet being provided from said cylindrical space when said grooves overlap or register.

In testimony, that I claim the foregoing as my invention, I have signed my naine in presence of two subscribing witnesses.

- BASIL RUYSDAEL.

Witnesses:

PAUL GOEPEL, JOHN MURTAGH.

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